body {
  padding: 0;
  margin: 0 !important;
  height: 930px;
}

.w {
  display: flex;
}

ul {
  list-style: none;
}

body a {
  text-decoration: none;
  color: black;
}

aside {
  width: 300px;

  background-color: #002233;
  color: #fff;
}

aside h1 {
  height: 50px;
  color: orange;
  text-align: center;
  font-weight: 400;
  font-size: 23px;
}

ul li {
  height: 50px;
}

ul li a {
  color: #fff;
}

ul li a i {
  margin-right: 5px;
}

.main {
  width: 100%;
}

.main header {
  height: 50px;
  border-bottom: 1px solid #f1f1f1;
}

.main .info {
  float: right;
  margin-right: 50px;
  line-height: 50px;

}

.main .info #username {
  margin: 0px 30px;
}

.card {
  margin: 20px;
}

.card .title {
  display: inline-block;
  width: 200px;
}


#opt {
  height: 30px;
  border-radius: 5px;
}

.rounded {
  display: none;
  width: 200px;
  height: 200px;
}

.place {
  width: 200px;
  height: 200px;
  text-align: center;
  line-height: 200px;
  border: 1px solid rgba(0, 0, 0, .2);
  font-size: 32px;
  color: rgba(0, 0, 0, .2);
  vertical-align: top;
}

#editor—wrapper {
  border: 1px solid #ccc;
  z-index: 100;
  /* 按需定义 */
}

#toolbar-container {
  border-bottom: 1px solid #ccc;
}

#editor-container {
  height: 500px;
}